I would like to implement an object localization system using ZigBee network. Basically, I will have fixed routers (ZigBee configured as routers, not Wifi routers) stationary nodes that can communicate with a mobile device (ZigBee end-device) to determine the RSSI. In this case, I want to be able determine the RSSI of each router. Will I be able to do this with XBee Series 2? If not, what can I use to achieve this? I've attached a diagram for illustration.
Also, I want to be able to track more than one tag or mobile node.
You could.... try to use an esp8266, but unfortunately localisation using radio will probably be quite unreliable.
If I use my mobile phone and check rssi of my router for example, it doesn't give me a smooth decline in signal if walk away from the router. Sometimes I even get a slightly better signal at 10 mtr as at 5mtr distance.
You could of course try to use it, but you probably won't get a high resolution.
Whether you'll use wifi, xbee or an other radio-module, probably won't make much difference, problem is that radio signals themselves aren't very reliable.
It probably would be much easier to use sonic distance sensors (if it's in a room), they're much more reliable. It might also be possible to use 3-4 lights, with a servo mounted light sensor as well.
In what kind of location do you want to use your project ?
Simpson_Jr:
Whether you'll use wifi, xbee or an other radio-module, probably won't make much difference, problem is that radio signals themselves aren't very reliable.
It probably would be much easier to use sonic distance sensors (if it's in a room), they're much more reliable. It might also be possible to use 3-4 lights, with a servo mounted light sensor as well.
In what kind of location do you want to use your project ?
Indoor. I know they are not reliable but some people used advanced filters to get good estimates. I've read a lot of papers about it, and they were able to reach good accuracies, like 6m.
